> Guns are used to shoot people because they are available, not because they are legal.
It's fairly easy for Italian citizens to obtain a gun (they need permits just like US), yet their mean death rate from mass shootings is one of the lowest, (lower than UK's) [1]
The problem with changing US gun culture is, right or wrong, the Second Amendment has been literally foundational to our history and culture.
If people disagree with the second Amendment, then it needs to revoked or changed. Until then, it's the law of the land. Changing the second Amendment won't happen. There isn't enough support for that in this country. A half-solution of restricting guns ties the hands of the good guys and empowers the bad guys.
[1] https://worldpopulationreview.com/country-rankings/mass-shoo...